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| 1 | An accurately fast algorithm of calculating reflection/transmission coefficients显示文摘For the boundary between transversely isotropic media with a vertical axis of symmetry (VTI media), the interface between a liquid and a VTI medium, and the free-surface of an elastic half-space of a VTI medium, an accurately fast algorithm was presented for calculating reflection/transmission (R/T) coefficients. Specially, the case of post-critical angle incidence was considered. Although we only performed the numerical calculation for the models of the VTI media, the calculated results can be extended to the models of transversely isotropic media with a horizontal axis of rotation symmetry (HTI media). Compared to previous work, this algorithm can be used not only for the calculation of R/T coefficients of the boundary between ellipsoidally anisotropic media, but also for that between generally anisotropic media, and the speed and accuracy of this algorithm are faster and higher. According to the anisotropic parameters of some rocks given by the published literature, we performed the calculation of R/T coefficients by using this algorithm and analyzed the effect of the rock anisotropy on R/T coefficients. We used Snell's law and the energy balance principle to perform verification for the calculated results. | CASTAGNA J P | 2008 | Science China(Physics,Mechanics & Astronomy)2008，51，7： | 10 |
| 2 | Effects of anisotropy on time-depth relation in transversely isotropic medium with a vertical axis of symmetry显示文摘It is known that rock anisotropy can significantly influence the phase and energy velocities of an elastic wave,as well as its reflection/transmission(R/T)coefficients.As a result,it can distort the velocity analysis of seismic-reflection data.In this work we present a velocity analysis for seismic-reflection data based on the available anisotropic rock parameters.We analyzed the created errors on time-depth relation of the seismic-reflection data in neglecting rock anisotropy and/or neglecting the difference between energy velocity and phase velocity,including the case of wide-angle reflection.The calculated results show that the effect of rock anisotropy on time-depth relation of seismic-reflection data is dependent not only on the values of anisotropic parameters,but also on the space arrangement of both source and receiver-array.For all studied cases(weak,moderate or strong anisotropy),we found that the effect of rock anisotropy on time-depth relation could not be neglected.Nevertheless,for the case of weak anisotropy,the energy velocity may be replaceable by the phase velocity to obtain a very good approximation on time-depth relation.Consequently,the seismic-reflection data processing algorithm for numerical computations can be simplified. | FA Lin CASTAGNA John P ZENG ZhengWen BROWN Ray L ZHAO MeiShan | 2010 | Chinese Science Bulletin2010，55，21： | 9 |
| 3 | Relationships between compressional-wave and shear-wave velocities in elastic silicate rocks显示文摘 | CASTAGNA J P BATZLE M L EASTWOOD R L | 1985 | Geophysics1985，50，4： | 1 |
| 4 | Instantaneous spectral analysis: Detection of low-frequency shadows associated with hydrocarbons 显示文摘 | CASTAGNA J P SUN S SIEGFRIED R W | 2003 | The Leading Edge2003，22，2： | 1 |
| 5 | Salinity tolerance of some marine bivalves from inshore and estuarine enviroents in Virginia waters on the western mid-Atlantic coast 显示文摘 | CASTAGNA M CHANLEY P | 1973 | Malacoloijia1973，12，： | 1 |
| 6 | Instantaneous spectral analysis:detection of low-frequency shadows associated with hydrocarbons显示文摘 | Castagna J P Sun S Siegfried R W | 2003 | The Leading Edge2003，22，2： | 1 |
| 7 | Case study:AVO analysis in a high-impedence Atoka Sandstone (Pennsylvanian),North Arkoma Basin,Mcintosh County,Oklahoma显示文摘 | John P Castagna | 2003 | The Leading Edge2003，22，10： | 1 |
| 8 | Instantaneous spectral analysis: dectection of low frequency shadows associated with hydrocarbons 显示文摘 | Castagna J P Sun S | 2003 | The Leading Edge2003，1，22： | 1 |
| 9 | Spectral decomposition of seismic data with continuous-wavelet transform显示文摘 | SINHA S ROUTH P S ANNO P D CASTAGNA J P | 2005 | Geophysics2005，70，6： | 1 |
| 10 | Instantaneous spectral analysis: Detection of low-frequency shadows associated with hydrocarbons 显示文摘 | John P Castagna Shengjie Sun Robert W Siegfried | 2003 | The Leading Edge2003，22，2： | 1 |
| 11 | Principles of AVO crossplotting显示文摘 | Swan H W | 1997 | The Leading Edge1997，16，4： | 1 |
| 12 | Useful approximations for converted-wave AVO 显示文摘 | Ramos A C B Castagna J P | 2001 | Geophysics2001，66，6： | 1 |
| 13 | Prefraction- ation techniques in proteome analysis:the mining tools of the third millennium 显示文摘 | Righetti P G Castagna A Antonioli P | 2005 | Electrophoresis2005，26，2： | 1 |
| 14 | Instaneous spectral analysis:detection of low-frequency shadows associated with hydrocarbons显示文摘 | Castagna J P Sun S J | 2003 | The Leading Edge2003，22，2： | 1 |
| 15 | Instantaneous spectral analysis:dectection of low frequency shadows associated with hydrocarbons显示文摘 | Castagna J P Sun S J Siegfried R W | 2003 | The Leading Edge2003，22，2： | 1 |
| 16 | Instantaneous spectral analysis:Detection of low frequency shadows associated with hydrocarbons显示文摘 | Castagna J P Sun S Siegfried R W | 2003 | The Leading Edge2003，22，2： | 1 |
| 17 | The petrophysical basis for shallow-water flow prediction using multicomponent seismic data 显示文摘 | Huffman A R Castagna J P | 2001 | The Leading Edge2001，20，9： | 1 |
| 18 | Relationships between compressional- wave and shear - wave velocities in clastic silicate rocks, Geophysics 显示文摘 | Castagna J P Batzle M L | 1985 | 50: 571-5811985，50，： | 1 |
| 19 | Useful approximations for converted-wave AVO显示文摘 | Ramos A C B Castagna J P | 2001 | Geophysics2001，66，6： | 1 |
| 20 | Shear wave velocity estimation in porous rocks: theoretical formulation, preliminary verification,and applications显示文摘 | Greenberg M L Castagna J P | 1992 | Geophysical Prospecting1992，40，2： | 1 |
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